rawhide update (2.91.6) of evolution-related packages is gtk3 only

[Milan Crha]

	Hi,
Evolution team drops support for gtk2 in 2.91.6 release of
evolution-related packages (gtkhtml3, evolution-data-server and
evolution) which might make trouble for dependent packages which are
still gtk2. I expect there will follow gtk3 updates for them in the near
future too, if not done already (this is mainly for packages using
libedataserverui and gtkhtml3, the rest should be fine).

There are done soname bumps and api version bumps in above mentioned
packages as well. The release will be done on Monday, when I plan to
update rawhide too (+/- few days, if something will go wrong).
	Bye,
	Milan